24V Variant: FEATURES, FUNCTIONS AND SPECIFICATIONS: Microphone Box for Servo Control Machinery Microphone: Gooseneck Type Voltage: 24 Volt DC Connector: 6-Pin, President Wiring INSTALLATION: Connect Gooseneck Microphone to the Box Connect the 6-Pin Microphone Lead from Box to the Radio Connect the black lead to 24 Volt Minus Connect the red lead tp 24 VDC Plus from a powered switch (not included) (Some machines come standard with a foot switch for this kind of application) When the box is powered it will activate the PTT function from the radio VERSIONS: SAML 70206 = 12 Volt Version SAML 7020624V = 24 Volt Version   PACKING INCLUDES:   1 Pc of Mic Box with Connected Power Lead and Microphone Cable 1 Pc of Gooseneck Mircophone 12V Variant: FEATURES, FUNCTIONS AND SPECIFICATIONS: Microphone Box for Servo Control Machinery Microphone: Gooseneck Type Voltage: 12 Volt DC Connector: 6-Pin, President Wiring INSTALLATION: Connect Gooseneck Microphone to the Box Connect the 6-Pin Microphone Lead from Box to the Radio Connect the black lead to 12 Volt Minus Connect the red lead tp 12VDC Plus from a powered switch (not included) (Some machines come standard with a foot switch for this kind of application) When the box is powered it will activate the PTT function from the radio VERSIONS: SAML 70206 = 12 Volt Version SAML 7020624V = 24 Volt Version PACKING INCLUDES: 1 Pc of Mic Box with Connected Power Lead and Microphone Cable 1 Pc of Gooseneck Mircophone